BALANCEAMENTO DE ROTORES FLEXÍVEIS

Abstract

Balancing is the process by which the mass distribution of a rotor is corrected by adding or removing mass in an attempt to bring the centers of mass and geometry of a rotor closer together, so that the vibrations, as well as the efforts in the bearings, do not exceed the limit values ​​established for the set in question. The importance of balancing on rotors is growing every day. Firstly, due to the demand for machines that operate at high speeds, followed by the need to maximize the useful life, availability and reliability of these machines, and lastly, care for the safety of people and the environment. The work aims to evaluate the methods "influence coefficient" and "three points" in the balancing, in a plane, of a flexible rotor, with a known unbalanced mass. The natural frequencies of the equipment to be balanced will be collected by PRÜFTECHNIK's Vibxpert II Collector and Analyzer. For this, the impact tests (bump test) and the climb test (run up) will be used. This same collector will also be used for data collection in the two balancing methods.